wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

What happens when a similar charge is placed on a soap bubble?


A

Its radius decreases

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

Its radius increases

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C

The bubble collapses

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

None of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B

Its radius increases


Coulomb interaction

  1. Attraction or repulsion of charges because of their charges is called as coulomb interaction.
  2. Opposite charges attract each other. Like charges repel each other. Also a charged particle attracts an uncharged particle.
  3. In all these interaction electrostatic force exists between particles.
Revision Notes for Science Chapter 15 - Some natural phenomena (Class 8th)  | askIITians

Explanation

Correct answer is option B.

  1. Soap bubble is in spherical shape. When a charge (either positive or negative) is placed on it, they get uniformly distributed.
  2. As similar charges repel each other, these charges apply force of repulsion on each other. As a result pressure is applied on the surface of bubble resulting enlargement of its radius.
  3. When the charge is placed on the soap bubble, every portion of the surface of the soap bubble has the same charge. As a result, each section of the soap bubble’s surface repels every other section of the surface, increasing the soap bubble’s size (radius)

Hence option B is correct.


flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Static Charges
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon